A50e — Mexican Defence
1.d4 Nf6 2.c4 Nc6 3.Nf3 e6
Eval: [+0.35]
Les coups candidats
Ambassadeurs : Vlassov, Nikolai (32x), Simmelink, Joop Theo (24x), Orlov, Georgi (22x), Bologan, Victor (17x), Hausrath, Daniel (16x), Healey, Michael W (15x), Meszaros, Gyula (13x), Morin, Stephane (13x)
Ambassadeurs : Vlassov, Nikolai (49x), Simmelink, Joop Theo (20x), Bologan, Victor (16x), Riff, Jean-Noel (15x), Rozentalis, Eduardas (15x), Hausrath, Daniel (14x), Gupta, Abhijeet (14x), Meszaros, Gyula (13x)
4.g3 — 20.6% (1264 parties)
Ambassadeurs : Vlassov, Nikolai (31x), Gupta, Abhijeet (15x), Arnaudov, G. Petar (14x), Frink, Ferenc (14x), Meszaros, Gyula (11x), Bologan, Victor (10x), Orlov, Georgi (9x), Simmelink, Joop Theo (8x)
4.e3 — 4.8% (295 parties)
Ambassadeurs : Vlassov, Nikolai (6x), Simmelink, Joop Theo (5x), Hausrath, Daniel (5x), Gurgenidze, Bukhuti (3x), Bottyan, Peter (3x), Barcza, Gedeon (2x), Paronen, Petteri (2x), Kosyrev, Vladimir (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nc3 4.a3 4.g3 4.e3
<1800 171 47% 18% 16% 9%
1800-2200 1940 42% 27% 19% 5%
2200-2600 3212 34% 34% 23% 4%
2600+ 97 25% 39% 30% 5%
Évolution par décennie (% des parties)
Décennie N parties 4.Nc3 4.a3 4.g3 4.e3
1920s 2 100%
1930s 4 50% 25% 25%
1940s 3
1950s 8 38% 12% 12% 25%
1960s 7 57% 14%
1970s 7 71% 14% 14%
1980s 40 45% 10% 20% 12%
1990s 708 48% 20% 19% 3%
2000s 2264 40% 31% 17% 5%
2010s 2654 36% 31% 23% 5%
2020s 453 32% 31% 28% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nc3 36% 32% ▼ -4.2%
4.a3 31% 31% +0.3%
4.g3 23% 28% ▲ +4.6%
4.e3 5% 5% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Gukesh D — 3 parties
Kramnik, Vladimir — 2 parties
Kasparov, Garry — 1 partie
Ju, Wenjun — 1 partie
Ding, Liren — 1 partie
Parties historiques
4.Nc3 — 38.5% (2370 parties)
1926 — Gooding, William vs Macdonald, Ronald Cadell — 1/2-1/2 — Edinburgh SCO
1926 — Rosselli del Turco, Stefano vs Hellmann Ernesto — 1-0 — Milan ITA
1938 — Lilienthal, Andor vs Kopaev, Nikolay A — 1/2-1/2 — Leningrad RUS
1938 — Budo, Alexander Semenovich vs Kopaev, Nikolay A — 0-1 — Leningrad RUS
1950 — Szapiel, Mateusz vs Keres, Paul — 0-1 — Szczawno Zdroj
4.a3 — 29.4% (1811 parties)
1933 — Ilic Dragoslav vs Djordjevic Sreten — 1-0 — Belgrade SRB
1954 — Zimmermann, Otto vs Kremer, Paul — 1-0 — Amsterdam olm
1979 — Kojder, Konrad vs Miesowicz, A. — 1-0 — Bydgoszcz POL
1983 — Certek, Pavel vs Brestak, Jan — 0-1 — Nova Bana
1986 — An, Yanfeng vs Vilas Boas, Luz — 1-0 — Dubai UAE
4.g3 — 20.6% (1264 parties)
1958 — Malich, Burkhard, Dr. vs Barcza, Gedeon — 1/2-1/2 — Balatonfured
1967 — Reefschlaeger, Helmut, Dr. vs Jongsma, Alexander — 1/2-1/2 — Detmold GER
1974 — Commons, Kim S vs Karklins, Andrew — 1-0 — Chicago ch-USA
1983 — Priehoda, Vitezslav vs Brestak, Jan — 1-0 — Nova Bana
1985 — Polgar, Z. vs Benjamin Bedell, Jr. — 1/2-1/2 — Dortmund GER
4.e3 — 4.8% (295 parties)
1932 — Johner, Hans vs Henneberger, Walter — 1-0 — Bern SUI
1954 — Gereben, Erno vs Barcza, Gedeon — 1/2-1/2 — Budapest HUN
1957 — Van Emden, Bob vs Barcza, Gedeon — 0-1 — San Benedetto
1984 — Ehlvest, Jaan vs Gurgenidze, Bukhuti — 0-1 — Sverdlovsk
1988 — Thijkssen vs Hoekstra, Arnold — 1/2-1/2 — corr Netherlands